Tunnel Diode Websites
AMS - American Microsemiconductor, Inc. - U.S. Suppliers and Manufacturers of Discrete Active Electronic Components
American Microsemiconductors Inc. semiconductor supplier. Specializing in obsolete and discontinued diodes, integrated circuits, transistors, SCRs, triacs, diacs and memories.
900,312 
$ 720.00
Spark, Bang, Buzz and Other Good Stuff.
This is a homepage of really fun scientific and technical projects that are easy to build and informative.
2,916,967 $ 240.00